Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: macula56 on July 08, 2010, 06:11:40 am

Title: Difference between SuperLead and SuperBass
Post by: macula56 on July 08, 2010, 06:11:40 am

does anyone know what the differences are between SuperLeads and SuperBass amps? I can't find a schematic for a SuperBass anywhere. If anyone knows where I can find a schematic for one I would appreciate that info. Thanks, JMac.

Title: Re: Difference between SuperLead and SuperBass
Post by: topbrent on July 08, 2010, 06:27:14 am

SuperBass is similar to the 5f6a bassman/JTM45. 
 
SuperLead changed a few component values to make the lead channel brighter. 

SuperBass: http://ceriatone.com/images/layoutPic/marshallLayout/Plexi50BassCeriatone.jpg
SuperLead: http://ceriatone.com/images/layoutPic/marshallLayout/Plexi50LeadCeriatone.jpg
(http://ceriatone.com/images/layoutPic/marshallLayout/Plexi50LeadCeriatone.jpg)
(http://ceriatone.com/images/layoutPic/marshallLayout/Plexi50BassCeriatone.jpg)

Title: Re: Difference between SuperLead and SuperBass
Post by: sluckey on July 08, 2010, 07:16:44 am

You can see the schematics for the 1992 JMP Super Bass 100W head or the 1959 JMP Super Lead 100W head here...

http://www.drtube.com/marshall.htm#JMP

or here...

http://www.schematicheaven.com/marshall.htm

Title: Re: Difference between SuperLead and SuperBass
Post by: macula56 on July 08, 2010, 09:00:31 am

many thanks gentlemen.